As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BURNING ODOR IN THE CABIN. ACCOMPLISHED CARD 05-96-70 CABIN ODOR TROUBLESHOOTING. REACCOMPLISHED CARD 71-97-05 STEP 13, LEFT/RIGHT ENGINE WASH. NO FUMES, SMOKE, OR ODOR NEMERGENCY DECLARED. RETURNED TO DEPARTURE, AND AIRCRAFT WAS GROUNDED. OTED. OPERATIONAL CHECK GOOD.